Knowt

Knowt is a free Quizlet alternative that turns your notes, PDFs, lectures, and videos into flashcards, quizzes, and study guides, with an AI assistant called Kai. The free tier covers everyday coursework; paid Ultra removes AI usage limits.

Best for: Quizlet-style studying without the paywall

What you get

• Free Basic plan: unlimited flashcards & notes, free study modes (Learn, matching, spaced repetition, practice tests), and browsing millions of pre-made sets — no credit card (AI features are usable but monthly-capped)
• Paid Ultra plan: $24.99/mo or $149.99/yr (~$12.49/mo effective) unlocks unlimited AI summaries, unlimited Kai chat, and auto-graded assessments
• Students get 15% off paid plans plus a 1-month free trial via verified programs (UNiDAYS / Student Beans)
• A standard (non-student) trial length isn't stated on the official plans page — third-party reviews say ~7 days; check their site before relying on it

How students use it

• Upload lecture notes or a PDF and get flashcards built for you
• Use Learn mode and practice tests free — the modes Quizlet now charges for
• Import your old Quizlet sets and keep studying where you left off